Learning Outcome 3

Question 1

Describe briefly the characteristics of IPv6 Address

Answer 1

• 128-bit binary addressing scheme
• 8 octets
• 16 bits in each octet
• Any leading 0’s don’t need to be written
• The 1st 64 bits are used

Question 2

Convert this part of an IPv6 address to binary:
6857:0AC5:FADC

Answer 2

6857 - 0110 1000 0101 0111
0AC5 - 0000 1010 1100 0101
FADC - 1111 1010 1101 1100

Answer = 0110 1000 0101 0111:0000 1010 1100 0101:1111 1010 1101 1100

Question 3

Write the table used to subnet - Part 1 - Last number of IP address.

Note: This row is made by adding magic numbers from 32 to 1 to 192 in this specific order

Answer 3

Last Number of IP Address
Blank 192 224 240 248 252 254 255

Question 4

Write the table used to subnet - Part 2 - Magic Number

Note: The magic number are the numbers used to convert to binary from 128 to 1.

Answer 4

Magic Number:
128 64 32 16 8 4 2 1

Question 5

Write the table used to subnet - Part 3 - Network -2.

Note: This is like the magic number but reversed and the first number is higher than the last number of the magic number

Answer 5

Network -2:
2 4 8 16 32 64 128 256

Question 6

Write the table used to subnet - Part 4 - Host -2.

Note: This is the same as the network -2 but it is flipped.

Answer 6

256 128 64 32 16 8 4 2

Question 7

Write the table used to subnet - Part 5 - CIDR/24

Note: This is the number after the slash added with 1.

Answer 7

CIDR/24:
/25 /26 /27 /28 /29 /30 /31 /32

Question 8

Create the Network, Range and Broadcast Table and explain how to work out the Network.

Answer 8

Network: Works by first taking your IP address and inputting the magic number as the last number. Then add the magic number to the last number of the IP address each time.

Question 9

Create the Network, Range and Broadcast Table and explain how to work out the Broadcast.

Answer 9

Broadcast: This works by taking the second IP address of the Network table and then Subtract 1 to the last number of the IP address.

Question 10

Create the Network, Range and Broadcast Table and explain how to work out the Range.

Answer 10

Range: This works by taking the last number of the Network IP address of that row and adding 1 and taking the Broadcast IP address and Subtracting 1 to its last number.

Example: 9-14 (Found in exam notes)

Question 11

Work out the Subnet of 15

Answer 11

IP Address: 192.168.100.0/28
255.255.255.240
Magic Number = 16

Network: Range: Broadcast:
192.168.100.16 17-30 192.168.100.31
192.168.100.32 33-46 192.168.100.47

Question 12

Work out the Subnet of 50

Answer 12

IP Address: 192.168.100.0/30
255.255.255.252
Magic Number = 4

Network: Range: Broadcast:
192.168.100.04 05-06 192.168.100.07
192.168.100.08 09-10 192.168.100.11

Question 13

Describe briefly the characteristics of an IPv4 address

Answer 13

• 32-bit binary addressing scheme
• 4 octets
• 5 subnets
• Uses decimal characters

Question 14

Describe the classes used in IPv4 address
List classes and range

Answer 14

Class: Range:
A 1-126
B 128-191
C 192-223
D 224-239
E 240-254

127 is reserved for loopback testing

Question 15

Describe the classes used in IPv4 address
List classes and Default Subnet Mask

Answer 15

Class: Default Subnet Mask:
A 255.0.0.0
B 255.255.0.0
C 255.255.255.0
D Reserved for Multicasting
E Experimental

Question 16

Describe the classes used in IPv4 addressing
List the class and hosts (up to class C)

Answer 16

Class: Hosts:
A 16 Million
B 65,000
C 254

Question 17

Work out the Subnet of 97

Answer 17

IP Address: 192.168.100.0/31
255.255.255.254
Magic Number = 2

Network: Range: Broadcast:
192.168.100.02 02-03 192.168.100.03
192.168.100.04 04-05 192.168.100.05